Bag-filling device.



J. BOWEN.

BAG FILLING DEVICE. APPLICATION FILED Amma, 1911.

1,014,998. Patented Jan.16,1912.

2 SHEETS-SHEET 1.

,I yllr V J. BOWEN.

BAG FILLING DEVICE. APPLIOATION FILED 11211.29, 1911.

1,014,998. Patented Jan. 16,1912.

2 sHEnTssH1:ET 2.'

/l ////////////////////////l////I l W/NEssEs l /NI/ENTo' azea'owem @py/MM@ hroiigli e. be@

elif/iE@ Loizioe.

To' all whom it may coneem:

Be it known that JAM-loe BG'WLEN, @iiizen of tbe United States. residing Linden, in the county of Genesee and oi Michigan, have invented eersiiii i'iew and useful .lmprovemenls in Beqdfiiling iDevioes, of 4which the following is a. specification.

The presenl:I invention is in the nature of e machine for iiliiig begs or similar oontainers Wili Cement, sand, or Ldie like, :ind the primary obj-eet of the iiiveiii'ieii is iiie provision of e. machine of this Character which embodies novel i'eeiures of construetion whereby Jche fioW of cement or like ma.- terial into J[he bag is auomotioally shut oliG as soon :is tbe required Weight of materiel bas entered the Ba'.

A further object of be inveiiion the provision of a bag filling inaobiiie which is simple and i expensive in its Construction, which will enable e large number begs to be filled with e.. minimum amount of labor and ifo. a comparatively @bert period of iiiie, and iwliiehieomprises .W and durable oei-ts Well adapted to witbsrziiid 'tbe usuel rough usage Without eootinuelly getitlng oi... of repair or metro-ent.

With lbese -iliid obber ob'jeets in View o will more readily appear ille descrip tion prbceeds, ne iiiveiiiiioii eoiisies iii oer-- tain. novel eonibiiaiione and erreiigeiiieiis of ibe perle;y 'if novel reali f" bepoinled out in tlf appended ciaooo.-

For e full iiiidersof ding of ll 'K reference ie to be bee. 12o tbe sei'iptieii :imi ooeoirqfj'eiiyi-iig Wliiob:-

Figure tical se the line zonol 'View on y 1ig. a e e.. horizontal sectional View through die upper end of 'the livoldieg frame, laken on tbe line one oi il i. Fig. 6 1s o. lop pien View e rfe'ioiiied oonsiuetioii of 'tbe beg lioidig frame. T is a View Similar to Fie. 5 s; orifng e. modi.- ied forni of bog, vengaging nieuwer-s elwV ployed orefw'egiii'g the monili oill cloth bag, azi-l Fig. ew oli-ibo Qorrespoiidiiig emi like :Lire re eee. @ed dem,

Serial Filo. @Ml/8.

erred to izo ille following description' and i' diez-ted in all 'the views oil the drawings by the same reference eliaracers.

SpeciiiC-olly describing the prese1it-em bodimen'i; of the invention, lie numeral l designaies llie bese upon which a suitable supersirue'tiire is mouiied. llie said superstructure including e platform Q which is arranged over the bese and projeetebeyond one end thereof. The 'weighing device or Scales 3 are iiioimted upon be basel, and are eliovvii as eomorising a pair of spaced beams suitably Conneeed by brace members and provided at iniermediale poinls in their length Willi the downwardly opening V shaped noohes el receiving e knife blade 6 projeei-ing upwardly from the bese. The Weight 6 Ylies; one eiicl 'thereof 'pivotully 'mounted 'upon tbe end of libe scales 3, While lie oppoeiie eiid thereof is adjustobly engaged by a rofl T Wiiieli i@ pivoially ooniieeted io ilie'seeles mi mi iiierniedizgte point This rod 7 is shown es t1 ing iii the weight 6? nuls 8 being mounted upon libe red and engaging opposite sides of tbe Weigli'sf so to bold tbe 'weight in an adjusted position. lilith. this construction il will be apporeiil 'filial the weight can be Swim@ up or down ondlooked in any desired poeii" y `est of the s'veiglit be ing is swung upward, and

swung downward. The (opposite end oi grirovided with upwardly open fied notches 9 i e blade 1C' the lower end Lino im?, il, die upper t frame being ie eiivefled platform '2 riii-.aise ,liims l2 if; manner with the nerd oif the bag; supser'fe '53o maintain The bug oriiied with a 9. ileel 'operi which ibe bottom of the "filed to rest, and also with a o. is limb`l odi, me s -e I i3 and if vided with means :for engaging r ll; will also be ob- Witi a. xeni v u .i herbei l? is moiiiieol upon the projecto? die plezorm 2, emol ie provided 'directly over the opening 16 in the head of thexbag supporting frame. Any suitable formv of 'agitator such 'as that indicated at '20,may be arranged within the hopper 17 to cause a proper feeding. of the cement or fother material within the hopper. Thebotvtom "of the hopper is arranged above and slide.

slightly 'spaced from the platform 2, a slide .21 being mounted within the space between "the two members. This slide its formed at "the outer end thereof lwith an opening 22 which can .be moved either into or out of registry with the openings 18 and 19 to permit a flow of cement from4 the hopper through the said openings, or shut off the flow of 'cement through the said openings. The opposite end of lthe slide is shown as engaged by suitable guide members 23, and. also by a spring 24 which normally tends to push the slide out-wardly 'so'as to shut oli-` 'the flow of cement. A'longitudinally disposed slot is formed in the slide, and a pawl 25 is mounted within -this slot, the rear end of the pawl being pivoted at 26 between the side walls of the said slot, while the forward end of the pawl is flaredv and normally tends to drop by gravity into such a position as;to project downwardly below the bottom .of the slide, the downward Inove- 'ment of the pawl being -limitedby -a lip 27 which projects from the upper end thereof and is designed to engage the top of the This pawl is designed `to engage va notch 28 in /a' detent 29 which is arranged within a slot 30 in the platform 2 and is yrigid with a transversely disposed shaft 31. lAn arm 32 projects laterally from one end ofthe shaft 31 and is connected by an upright link member 33 to the scales 3.

" When the bag 14 is' empty or partially filledV and is over balanced by the weight 6, the shaft 31 is suitably rotated to bring the detent 29 into the position shown in Fig. 1 so that the notch 30 therein will be engaged by the pawl 25 Awhen the slide 21 is moved rearwardly against the action of the spring 24. In this connection, will be obvious that when the slide is moved rearwardly the pawl 25 will be swung upwardly by engagement with the back-of the detent 29 until the slide reaches the position shown in Fig. 1, with the opening 22 therein in alinement with the opening 18 of the hopper, when the nose of the pawl will drop by gravity into the notch 28. The cement'or other material within the hopper 17 will then flow into the bag 14 until a sufficient amount thereof has entered, the bag to overcome the action of the weight 6. The-scales will then tilt and thereby pull downwardly upon the link 33 so as to rotate the shaftifal and revolve the detent 39 into such a posil2 spring 24 will then force the slide outwardly so as to shut ofi the flow of cement'from the hopper. The bag'lcan then be removed .from the bag holding frame and another bag applied thereto, after which the slide 21 will -againbe moved rearwardly into the position shown in Fig. 1, either manually or byI any suitable mechanical means provided for that purpose.

When the machine isv utilized in connection with paper bags, 'as indicated 'in Figs.4 1 and 5, the head 15 of the bag supporting frame will be formed with a downwardly projecting annular flange 34 adapted to'have the mouth of the bag clamped thereto; Any suitablemeans may be provided. for this purpose, such as 'the curved 'levers 35 shown in 5, the rear ends of the said levers being pivoted at 36 .to the head, while the forward ends of the levers are extended outwardly at so as to be detachably connected. In the present instance one of the extensions 37 is provided with a spring 28 provided with a hook 39 adapted to engage an eye 40 in the opposite extension. With thisconstruction it will be obvious that'the clamping levers .35 can be quickly drawn together so as to engage the mouth of a bag and hold it in proper position, or separated to releasethe mouth of the bag.

A modification adapted to be `employed in connection with bags madennof cloth or fabric is shown in Figs. 6, 7 and 8. In this 'construction 'a' -pair of, substantially semi# circular bag engaging members 41 are ap plied to the bottom of the head 15,`- the in termediate portions 'of the members 41 being for the opening 16, andone` end of the said members 41 -being pivoted to the head 43, while' the. opposite end of each of the said members .is formed with affcurved wall44 adapted to be engaged `by ardoublecam 45. This cam is mountedupon a shaft 46 which projects upwardly through the.- head l 15 where it is provided with a handle 47. When this handle is turned into the vposition indicated in Fig. 6, the bag engaging members 41 can swing together so that the mouth of a bag can be readily drawn over the same handle 47 is turned into the position indicated in Fig. 7 so as to throw the double-cam member 45 into engagement with the curved walls 44, the members 41 will be forced apart, as indicated in Figs. 7 and 8, so as to 'engage the mouth of a bag and hold the bag securely in position.

Vhile `I have employed a single one of these bag filling machines, yet it` is contemplated in practice to-provide a `series of these machines upon a single support, and it will be obvious that such is ventirely within the tion as to d isengage the pawl 25`from the notch 28 and release the slide 21. `The,

suitable'notched at 42 -toy provide a clearance or removed therefrom. However, when the.

scope of the invention. Under some conditions it may be found desirable to make some provision for the escape of air from the bags as the cement enters the same, and for this purpose air pipes 50 are shown upon opposite sides of the hopper, the lower end of the air pipes being in communication with the nouth of the bag while the bag is being lle Y Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

l. In a bag filling device, the combination of tilting scales, a bag supporting frame mounted upon the tilting scales, a hopper arranged over the bag supporting frame so as to feed material into a bag mounted thereon, a slide for shutting off the flow of material from the hopper, yielding means normally tending to move the slide into operative position, a pawl mounted upon the slide, a rotary detent adapted to engage the pawl to lock the slide in an inoperative position, a rock shaft carrying the rotary detent and provided with a crank arm, and a link member connecting the Acrank arm to the tilting scales for rotating the rook shaft and `releasing the deten when the scales are tilted.v

2. In a bag filling device, the combination of tilting scales, a bag supporting `frame mounted upon the tilting scales,a hopper arranged over the bag supporting fralne so as to feed material into a bagmounted thereon,.a slide for shutting off the flow of material from the hopper, yielding imeans normally tending to move the slide into operative position, a pawl mounted upon the slide and normally tending to drop by gravity into such a position as to project below the slide, a rock shaft mounted under the slide a rotary detent carried by the rock shaft and formed with a notch adapted to be engaged by the downwardly projecting end of the pawl to hold the slide in an inoperative position, and an operative connection between the rock shaft and the over the bag supporting frame so as to feed into a bag mounted upon the same, a slide mounted upon the platform and adapted to cut off the flow of material from the hopper, the said slide being formed with a slot, yielding means normally tending to'move the slideainto operative position, a wedge shaped pawl having the reduced end thereof pivoted within the slot, the opposite end of the pawl being designed to drop by gravity into such a position as to project below the slide and Abeingforined with a lip projecting over the top4 of the slide to limit the downward movement thereof, a rock shaft mounted upon theelevated platform, a detent mounted upon the rock shaft and' formed with a-notch adapted to be engaged by the pawl to hold the slide in aninoperative position, and an operative connection between the rock Shaft and the scales for automatically releasing the slide when the scales are tilted.

4. In a bag filling device, the combination of tilting scales, a fixed superstructure arranged over the tilting scales, an upright bag supporting frame having the lower end thereof pivotally connected to the scales, the said bag supporting frame being formed with a lower shelf adapted to engage the bottom of the bag and also with an upper head having an inlet opening therein, means upon vthe said upper head for engaging the mouth of a bag, a link pivotally connecting the bag supporting frame to the superstructure for holding the bag `'supporting frame in an upright position, a hopper mounted upon the fixedsuperstructure and adapted to discharge through the vinlet opening of the upper head into the bag, and

means for automatically cutting off the iowv 9.5

of material from the hopper when the Scales are tilted by the weight of the material in the bag.

5. In a bag filling device, the combina-I tion of tilting scales, a Xed superstructure'100l arranged over the tilting scales, an upright bag supporting frame having the lower endthereof pivotally connected to the tilting scales, the said bag supporting framebeing formed with a lower shelf for engaging the bottom of the bag, and also with an upper head having an inlet opening and an air outletopening therein, ya link pivotally connect'ing the bag supporting frame to the superstructure for holding the said bag supporting .frame in an upright position, a hopper mounted upon the superstructure and adapted to discharge through the inlet opening of the upper head into the bag, an air outletmember upon the superstructure registering with the air outlet of the said upper head, and means' for cutting oif the. iow of material from the hopper when the scales are tilted by? the weight of the material in the bag. l Y

In testimony whereof I aiiix my signature in'presence of two witnesses.'

JAMES BOWEN.

IitIiesses:l

JosErHiNn HYATT, vCLAUDE E. HYATT. 

